Press the "A" key once which sets 5-6 pounds of brake pressure. The "A" key is the train brake valve in the locomotive which sets the brakes on the complete train including the locomotive(s). Uncouple and advance the throttle to the first or second notch while pushing the "D" key multiple times which bails off the locomotive(s) brakes. Once you are completely uncoupled press the "Q" key which returns the train brake valve("A"key) to the off position. You can watch your gauges on the locomotive control stand return to normal. Auran has this set-up exactly like a real locomotive operates.